Distillation tank for separating dimethylacetamide solution

Abstract

The invention relates to the technical field of fiber production auxiliary device and in particular to a distillation tank for separating a dimethylacetamide solution. The distillation tank is capableof rapidly separating a great amount of a dimethyl solution, saving energy and reducing use limits. The distillation tank comprises a base, a heating tank, a normal pressure tank, a normal pressure tank feeding tube, an upper normal pressure tank discharge tube, a lower normal pressure tank discharge tube, a raw material storage tank as well as a negative pressure tank, a negative pressure tank feeding tube and a vacuum machine, wherein the heating tank is internally provided with a heating plate; a distillation cavity is formed in the normal pressure tank; a storage cavity is formed in the raw material storage tank; a raw material inlet is formed in the top end of the left side of the raw material storage tank; a normal pressure tank raw material pump is arranged on the normal pressure tank feeding tube; the upper normal pressure tank discharge tube is arranged at the top end of the left side of the normal pressure tank; the lower normal pressure tank discharge tube is arranged at the bottom end of the right side of the normal pressure tank; a heat conduction plate is arranged between the negative pressure tank and the normal pressure tank.

Description

technical field [0001] The invention relates to the technical field of fiber production attachments, in particular to a distillation tank for separating dimethylacetamide aqueous solution. Background technique [0002] As we all know, the distillation tank for separating dimethylacetamide aqueous solution is an auxiliary device used in the fiber production process to separate the dimethylacetamide aqueous solution produced during the cleaning of dimethylacetamide attached to the fiber production process. It has been widely used in the field of fiber production; the existing ones include bases, heating boxes, atmospheric tanks, atmospheric tank feed pipes, atmospheric tank upper discharge pipes, atmospheric tank lower discharge pipes and raw materials Storage tank, the heating box is installed on the top of the base, and a heating plate is arranged in the heating box, the bottom of the normal pressure tank is in contact with the top of the heating box, and a rectification cha...

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Problems solved by technology

[0002] As we all know, the distillation tank for separating dimethylacetamide aqueous solution is an auxiliary device used in the fiber production process to separate the dimethylacetamide aqueous solution produced during the cleaning of dimethylacetamide attached to the fiber production process. It has been widely used in the field of fiber production; the existing ones include bases, heating boxes, atmospheric tanks, atmospheric tank feed pipes, atmospheric tank upper discharge pipes, atmospheric tank lower discharge pipes and raw materials Storage tank, the heating box is installed on the top of the base, and a heating plate is arranged in the heating box, the bottom of the normal pressure tank is in contact with the top of the heating box, and a rectification chamber is arranged in the normal pressure tank, and the raw material storage tank is placed under normal pressure The area on the left side of the tank, and the raw material storage tank is provided with a storage cavity, and the top left side of the raw material storage tank is provided with a raw material inlet. The input end is connected with the raw material storage tank, the output end of the atmospheric tank feed pipe is connected with the atmospheric tank, and the atmospheric tank feed pipe is provided with an atmospheric tank raw material pump, and the left top of the atmospheric tank is provided with an atmospheric The discharge pipe on the tank, the bottom right side of the atmospheric tank is provided with the discharge pipe under the atmospheric tank; the existing distillation tank for separating dimethylacetamide aqueous solution is used when using The raw material pump feeds the dimethylacetamide aqueous solution into the atmospheric tank, uses a heating plate to heat the aqueous solution in the atmospheric tank, and leads the water out from the upper discharge pipe of the atmospheric tank, and the dimethylacetamide is discharged from the bottom of the atmospheric tank. Feed mouth leads out; It is found in the use of the existing distillation tank for separating dimethylacetamide aqueous solution that it has only one rectification chamber, which cannot quickly separate a large amount of dimethylacetamide aqueous solution, and because the distillation time is too long, it consumes More energy, resulting in higher limitations in its use

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